The Arapaho and Roosevelt National Forests and Pawnee National Grassland are located in the north central part of Colorado.
Where is this Forest?



The Arapaho and Roosevelt National Forests and Pawnee National Grassland (ARP) is located in north central Colorado. The forests and grassland encompasses 1.5 million acres and extends north to the Wyoming border, south of Interstate 70 to Mount Evans, west across the Continental Divide to the Williams Fork area and includes short grass prairie east of I-25. The forests and grassland is head-quartered in  Fort Collins, CO with district offices in Boulder, Fort Collins, Idaho Springs, Granby and Greeley, CO.

Brainard lake covered in white snow

Recent News


Holiday Tree Cutting

Small boy in a red coat poses with Smokey Bear in the snow.

Celebrate the holiday by cutting your own tree on either the Canyon Lakes or Sulphur ranger districts this season. Trees can be cut on the Canyon Lakes Ranger District (near Red Feather Lakes) or the Sulphur Ranger District (near Winter Park).

Flood Recovery Information

Boulder County Flood Crew helps stabilize trails in Lefthand OHV area.

Check our Flood Recovery page for closure details and information about the Arapaho and Roosevelt National Forests'  recovery from the September 2013 Flood. Some roads, trails, and facilities on the Boulder and Canyon Lakes ranger districts remain closed.

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Magnolia Trails Decision Notice Released

Man mountain bikes down narrow trail through trees

Learn about the decision and see highlights, maps and documents from the Magnolia Trails Project. Continue to follow this page for updates during implementatio...

Forsythe II Project Information

Thick trunks of lodgepole pine

The U.S. Forest Service's Boulder Ranger District is developing a proposed action to restore landscapes in the wildland urban interface near Nederland and Gross Reservoir.